THE AOTUCULTURAL NEWS. 



J 



Reduce the Milk Yield 'v h^ 



An Important Matter for Owners of Dairy Herds 



^ 



CATTLE TICK 



FEMALE 



^he following information is taken from Farmers' bulletin, Xo. 639, issued officially by the T)epartment of AgricuUure of the United States. 



The actual amount of harm which licks do to cattle is no longer a matter of mere conieclure. But the need of definite knowledge on ihis subject 

 led the Department to conduct some experiments on the effect of the tick on milk production and on the body weights of dairy cattle. 



RESULTS OF EXPERIMENTS 



Forty cows were divided into 2 lots of 20, each of which was producing praciiciiHy the same amount of milk, and was given the same feed and 

 care for an average of 152 days, durmg the season most favourable to the development of ticks. 



One of the lots in each experiment was allowed to become infesJed with ticks, while another was kept free from tJicm— in one case by spraying 

 and in another by dipping. 



The main results of the experiment were as follows : 



1. Cows carrying ticks did not hold up so well in milk flow as cows kept free from ticks, and did not increase their flow of milk when the 



feed was increased, as did the tick-free cows. 



2. At the close of the experiment the cows lightly infested with ticks were pioducing IS'/r less milk than the cows kept free from ticks, 



practically IJ pints less per cow per day. 



3. At the end of the experiments the cows heavily infected with ticks were producing 42A'/c less milk than the lick free cows, or nearly 



pne-half gallon less per head per day. 



4. During the experiment period of one of the tests, which included 20 cows, the heavily infested cows lost an average of 9.3 pounds in 



weight, while the tick free cows gained an average of 44.2 pounds, although both were fed alike. 



THE COST OF FEEDING TICKS 



If a pen keeper or dairyman wllh 20 cows, each producing 8 quarts of milk a day, should let them become lightly infested with ticks, the milk 

 production would be decreased to the extent of I J quarts a day for each cow. 



At as low an estimate of 20 cents, a gallon or 5 cents, a quart, this would amount to 7j cents, or $ ! .50 for the entire herd of 20 cows each day. 

 If the tick Infestation were heavy the reduction in the milk yield would be 3.5 quarts a day for each cow, equal to 17 cents, in milk values. 

 This would amount to $ 3.40 a day for the herd of 20 cows. 



The following is an actual experience of a dairyman in a very heavily lick infested territory, which strikingly illustrates how heavy is the 

 cost of feeding ticks. 



Late in the season when his cows were covered with licks, the cattle were dipped and the licks killed. One week after dipplni; the 42 cowj 

 in his herd gave 10 gallons of milk more than before dipping. This was an increase of 16.6') and as the milk was bringing 35 cents, a 

 gallon the extra 10 gallons were worth § 3.50. Hence, as a result of being freed from licks by dipping, the same 42 cows, on die same feed, 

 produced extra milk sufficient to increase ihe dairyman's profits by . $3.50 per da y, or $1277.50 per annum. 



IT COSTS MORE TO FEED TICKS THAN TO KILL THEM 



If pen keepers and estate owners will work together the ticks can be eradicated. Complete eradication, and not merely suppression, shoold be 

 iho aim of every Owner of Cattle. The dipping tank, or spraying machine, makes the work easy, effective and practical. 



COOPER'S CATTLE TICK DIP WEST IND I. \N AGENTS : 



Has received the official approval of the following Countries: ST.KITTS: S. L. Hor.sford & Co. ANTIQLiA: Bennett, Bryson & COt 



IT . . c 41. .. • V ... au A < i> I 1. . , A JA.MAICA: 1). Henilerscm & Co., KinK.'iton. 



Union of South Africa, Northern Rliodesia, lirazil. Ba.'^iiloland, hhknada: Thum.son, Hankev & Co. 



Nyasaland, Swaziland, Southern Rhodesia, Madiijjascar, BAkUAims: isarbad,..^ c.. orerative Cotton Co.. Ltd. 



■^ * ' » ' liAhlA/\lA>: V\ . .N. Iw>iiani, Nassau. 



British East Africa, Qerman East Africa, Portuguese liast Africa, thimdaij: t. Ocdiies Oram. Port of 5pain. 



n . .V ■ .< • r . . .• D wi- /> , A BRIILSh (il'IANA: .<andbach, I'arker & Co. 



Portuguese West Africa, Egypt, Argentine Republic, Queensland, sT. vincini: Corea & Co.. Kingstown. NKVI5: 5. D. Malone. 



Ilnilfri S*ii«<"« nf Amprira New South Wnlci l)AM*ll \VI-;sT IMHIi.s; Carl \. La Beet, 5t. Tbomaj. 



united Mates ot America, iNew souin waies, MONT.M;R«Ar: w.i.uwiiivn waii. domimca: Hon.H.A.Frampton. 



Northern Territory of Australia. .■^r. i icia: itamard sons & Co., Castries. 



Manufacturers : WILLIAM COOPER & NEPHEWS, Berkhamsted, England. 



BRANCHES : Toronto, Chicago, Sydney, Melbourne, Auckland, Buenos Aires, Monic Video, Punta Arenas, East London, OdaMk 



